Plesioselachus

Plesioselachus
Temporal range:
Interpretation according to Gess and Coates (2015)
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Genus: Plesioselachus
Species:
P. macracanthus
Binomial name
Plesioselachus macracanthus
Anderson et al. 1999

Plesioselachus is an extinct genus of Late Devonian (Famennian) cartilaginous fish with uncertain classification, which contains only one species, P. macracanthus from the Waterloo Farm lagerstätte in South Africa. Known from a single incomplete articulated skeleton and some isolated remains, it is characterized by having a long dorsal spine with length about one third of body length.